.container {
  position: relative;
  width: 100%;
}

/* 清除浮动 */
.clear:after {
  display: block;
  height: 0;
  content: '';
  clear: both;
}

.flex-between {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}

.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.message {
  width: 200px;
  max-height: 100px;
  position: fixed;
  left: 50%;
  top: 50%;
  box-shadow: 0 2px 12px 0 rgba(0, 0, 0, .1);
  border: 1px solid #ebeef5;
  transform: translate(-50%, -50%);
  font-size: 16px;
  background: #ffffff;
  padding: 16px;
  border-radius: 4px;
  text-align: center;
  animation: hidden 2s;
}
